Sewer flushing apparatus



Nov. 14, 1933. H. wlRz, JR., n AL i 1,934,959

SEWER FLUSHING APPARATUS BY CHnR/.Es FI' HLAVHTY.

NOV. 14, 1933. H, W|RZ' JR., El' AL 1,934,959

SEWER FLUSHING APPARATUS Filed Feb. 29, 1932 2 Sheets-Sheet 2 INVENTORs. HERMA-N W/Rz JR. CH/vmss F. HLAvA-rn ATTORNE Paieiiied Nov.' 14, 1933 c f 'k Herman Wirz,

Application February l29, 19732. YSerial 5 Cams# f 01# lsf-106).:

@yfIxhis inventionrelates toimprovements in sewer iushing apparatus. Y Y j.; The general object of v.theinvention is tog'pro-V vide an Yimproved automatic,l apparatus for V ing'main sewers withIresh-Water. i. v vAnother object of the invention istoA provide an `automatic sewer,A ushing apparatus includ-v ing a'water reservoir fromjwhich thewateris apredeterminedleveh f '-10 A'further object of the Vinvention-is 'to Vprovide novel-means forcontrollingthe vaction of a i Siphon-used ,ina sewer flushing, apparatus. ,Otherk objects and theladvantages of .this in-A 15i vention -will be apparent from the following deproved sewer flushing apparatus taken Von 1 line i201 1-1 of Fig. 3. i Y Y Y.

- Fig.l 2is a section taken on line 2-2 ofrFig. 1. Fig.' 3 is a section takenfon line 3-i-3 of Fig. 1. Fig. 4 Yis-awviewsimilar to Fig.l 3 .showing the device before it is completed. Y i i f Fig.V 5 isan enlarged section taken` on.v line 5-,5

of Fig. 1. Y f L *Y Y,

a Fig. 6is a' top kplan viewof the parts shown 'in*Fig.,5.

Fig. 7-is `a side view oftheparts shown inFig.

30 5y and x i Fig. s yisa view ,simiiar tor'ig: renewing theV various elements in different positions.-V 1 i f Referring to the drawingsY byreference 'char acters, we have indicated atank generally at .10. lAs shown the tank isconstructed of .concretefand includes a Water' reservoir portion 12l and a rWell portion 13. Apipe 14 whichcommunicates with theV main sewer.(not shown) Vopens, into the well 13. Positioned in the well 13 we provide abranch pipe 15 which includes a single 'outlet 16 at one endlandia pair of parallel inlets 1'7 .and 18 at the opposite endr (see Fig. 4). the branch pipe 15 communicates with the pipe 414 1 and the inlet l1'7 is coaxial Withthe pipe 14 while the inlet 18 is offset. i Communicating .withthe inlet 1'7 we provide -a right. angle reduction bend k19the. smallend of which communicates-with a ventfpipe 20Which extends upward into the reservoir portionlZ a predetermineddi'stance above the normalfwater leveltherein. 'f g fPosition'e'din Vthe lwell 13 vwe providea goose neck pipe.l 21 which includes two parallel por-A i tions`22 and 23 whichr arejoined by a curved flushsiphonedfwhen the water inthe reservoir reaches Vvtance above the reservoir bottom 26.l 1`h'ev Siphon The outlet 16 of.

' is positioned.

portion 24.VV The portiorif22 includes an angular outletV V25 which communicates with the inlet! '18 of :the branch pipev 15 andthecurved'porton I' 24 is positioned adjacent thek bottomof the well 13 while the 'portion 23extends upward intofthe reservoir 12 a predetermined distance. The pipes 60 14', `15, 19, 20 and 21 are preferably made of clay tile' and. are secured together by suitablermeans Y such as cement inthe usual manner. a

After the Apipes 14,115, 19', 20 and-21 have been Y operatively-assembled the well 13 Yis preferably 65vr lled in with'concrete 'as indicated at 25 up to a predetermined level where the upper 4surface of theconcrete 25 forms a bottom 2,6for'the reservoir 12." The upper end of the portion 23 of the goose neck 21 extends above the bottom 26 a short 70 distance.. A'

- i whenV Ythey `wen i3 is ii11ed` with "concrete VYa.

sump 27 is provided in the concrete ll 25. .The siunp 27 is of-a widthy and; depth whereby-theV Yinlet end `l'fof the pipe" 1 5 is readily accessible 75 ed to be closedbyfa plank 28whichlis removably lsupported on metal membersr29 embeddedy inl thev so concrete.v The Avent pipe20 extends through the Y- plank 278' and around the pipe 2O and atthe top edges' the' plank 28I 'ispreferably .beveledto'p'lfo'f'A vide a groove in V*which asuitable calking material 3G, vsuch as meltedv sulphur ,is positionedv to form watertight jointsisee Figs..2 and`3),.` i

Within' the' reservoir 12,-we"provide.a Siphon head 32`which1includes an `outletr3`3 which atits lower fend communicates with the portion23of the goose neck2`1.` The upper'port'ion oflth'e outlet leg 33-is curved at rightan'gles and communi` cates with an 'enlarged chamber4 portion 534 from. the vbottom"tif-umich a reducedf inlet legY 35 exi-y tends downward'to a point 'spaced a slightv dishead 32`is also preferably made of claytile and for supporting thesi'phon head we provide' a bracket` in. `the concrete 25j`anda`crotch portion 38gi'n` which the `chaml'ner'portion 34 of the Siphon head -f r'v -v 10o `Positioned over the chamber portion 34' ofthe siphon head and secured to the crotch portion l3.8 yof the bracket'by a. plurality-of bolts 39we 'proj l vide a'clamping band 40.

lForregulating the actuation of the Siphon 105 action we -providea control device' which we have indicated generally at and shown in detail in Figs. 5 to 8 inclusive. As shown the control cle-'gV vice-includes ametal pipenipple 46 having' a lthreaded. shank 4'7 and. an I enlarged head 48i The head 48 is positioned against the underside of the clamping band and the shank 47 is positioned in an aperture 49 provided in the band 40 and a nut 50, positioned on the threaded shank 47, securely clamps the nipple 46 to the band 40.

portion 34 or" the siphon head the nipple head 48 is positioned in an aperture `51 provided inthe top ofthe chamber portion 34 and a cement 52 1Q which is positioned in a countersunk recess 53 surrounding the aperture 51 provides an air tight seal around the head of the nipple.

Secured to the nipple 46 by threaded engage ment with the threaded shank 47 we provide a coupling member 54 and! extending.. upwardly from the coupling we provide a valve device 55.

The valve device 55 is of standard make and includes a chamber 56 having an outlet 57, an in# letk 58 anda cylinder portion 59. The inlet 58` 20 communicates with the interiorroi the coupling member 54 and' between the inlet andthe cham-A ber 56 a valve seat 60 4is provided. PositionedY in the cylinder, portion 59a plunger 62 having an enlarged `.head 65 thereon towhich a closure 25F member 64 is secured. The closure memberv 64 is'made or". rubber and in a lower positionis adapted to engage the valve seat 60k to restrict the passageway fromthe inlet 58 into the chamber 56 and in a raised position is adapted .to allow 3Q; unrestricted passageway from the inlet 58 through the chamber 56 to the outlet 57. Y

According to our invention a pair of arms are pivotally mounted on the cylinder portion 59 intermediate their lengths as at 66.A One end ofv the arms 65 terminate in a clamping portion 67 which supports a socket member and the opposite ends of the :arms 65 are pivotally con-` nected vto a yoke member 69 which is positioned in afslot 70 in the plunger 61. Thus when the 4e? Socket member 66 is moved downward the yoke 69 will raise fthefplu'nger 611 andr when Vmoved upward will move the plunger 61 downward. Supported-in 'the` socket member 68 we provide arod- 71. Removably and adjustably clamped 455 to the coupling member54 we provide a bracket 72'` which includesran abutment portion 73 having a reduced stud shaft 74 extending therefrom which terminates in a reduced;` threaded end p0rtion 75. i y 1 59j Rotatably mounted on the stud shaft 74. we provide 'a disc 76 which `is preferably-made 'of a goed grade of hard rubber. The disc 76 is. mounted on the'shaft 74 above thecenter of the ldisc and is adapted to be retainedfon the shaft 74 by 55? a washerr-78-and aplurality of nuts 79 positioned on the threaded portion 75 of Athe shaft. In the outer periphery o1.Y thedisc 76 we providel a shallow notchY 80v and a deepV notch 81 defined by a steep-end'wallSZ and an angular endwall 8g3.

- Seeuredito the face of the disc 76 by screws 84` weprovide arnetal plate'85 which includes spaced anges'86 and 87 which are arranged at rightv angles to theiaceofthe disc `and each of which includes an elongated slot or aperture 88.

Loosely positioned in the apertures 88 wearrange a rod 89 on one endlr of which we provide a float member 90. At the end oi the rod 89 oppo'-l site the float member 90 we provide a threaded section 91 on which is positioned a washer92 and '70.'. nuts 93 which are adapted to retain the rod in When the band 40 is positioned on the chamberr float 90 and the rod 89 move the disc 76 to the position shown in Fig. 7, wherein the rod 71 is positioned in the shallow notch 80, and retained in a raised position, thus retaining the valve closure 64 in engagement with the valve seat 60. 8&1 The relation of the disc 76 to the rod 71 is such that when the rod 71 is in a raised position the valve closure 69 is compressed to a predetermined extent thereby applying atension to the rod 71 which prevents the disc 76 from accidentally 85 turning when the weight of the oat is released therefrom as the water rises in the reservoir 12.

As the water inthe reservoir 12 rises the float 90 and the rod 89 rise with it without disturbing the disc 76 until the rod 89 reaches the position 90 indicated by the broken line 96 in Fig. 7. Upon furtherupward movement of the float the rod 89 rotates the discl 76 in the direction indicated by the arrow A in Fig. 7.

VAs the disc is thus rotated the rod 71 is forced 95 up and'outof theshallow notch 80 and upon continued .movement of the disc enters the deep notch 81 and falls downward, thereby raising the valve closure 64 out ofv engagement with the valve seat 69 v(see Fig.' 8). When the rod 7l lll() enters the notch 81 and the pressure of the rod 71fon the disc 76 is released the weighted member rotates the disc 76 faster vthan would the rod 89, thereby producing a quick opening of the valve when the water in the reservoir has reached a predetermined point'. v

Forfillingy the reservoir 12 with water we have shown a standard type of metering-valve 97 such as is now commonly usedin sewer flushing devices and which is connected with a' suitable source 1F10 oi watersupply by a pipe 98. `In operation the metering valve 97 is opened sufliciently to allow a'predeterrnined amount ofwater to flow into the reservoir 12 in a given length of time.

In. operation both the portions 22 and 23 of H5 the goose neck 21 are lled with water up to the level of Vthe branch pipe 15 as shown in Fig. l.

As thelevel of the water in the reservoir rises it moves the neat 90 upward as previously described and at the same time water moves upward in H0 the leg 35 of the Siphon head 32. As the water rises in the 4leg .35 of the siphon head the air in the siphon head and goose neck between the water level in the leg 35 and the goose neck leg 23is compressed and the iioat 90 is arranged so 125 that it will rotate the disc 76 to operate'the valve 55 to an openjposition slightly before the compression of theair overcomes'the weight of the water in the goose neck.

The compressed air inthe VSiphon-head and goose neck leg23 also retains the water level in the siphon leg 35 below the water level in the reservoir 12. When the valve 55 is actuated to an open position as previously described the compressed air rushes out through the valve 55, 135 whereupon the weight or the water in the reservoir 12 forces the water in the leg 35 upward and into the Siphon leg 33 and thegoose neck leg v 23 whereupon the water flows into the branch pipe 15 and thence inte the pipe 14 from which it 149 flows into the main sewer. After thevwater has started to now all the water in the reservoir is siph'oned therefrom and discharged through the pipe 14'into the sewer.

.As soon as the, air` pressure is released in the X45 Siphon head and the water level.` in thereservoir begins to lower therfloat 90 moves downward and immediately rotates the disc 76 in a direction opposite to that indicated by the arrow A in Fig. 7, thereby forcing the rod 71 up'and out :of the i5@ device is actuated a supply of fresh airisadf mitted to the sewerthereby diluting the gases` deep notch v81-and into the shallow notch 80 thereby closing the .valve 55. y Y f l The vspeed with which the water rushes through the branch pipe 15 draws airdownward through the vent pipe 20. This air is drawn into the sewer withthe water. VThus everytime thel flushing formed in the sewer and lessening fthe dangerof sewer gas explosions. y e

When the ushing device is not actuating to ush the sewer, gases formed in the main sewercan back up through the pipe 14 and the branch pipe 15 and pass out through the vent pipe 20.v

When it is desired to swab out the Vpipe 14 the plank 28 is removed, the sealing compoundcementing the reduction bend 19 tothe branch pipe 15 is melted out and lthe'reduction bend removed fromithe .pipe 15. kAfter that a. swab, secured tothe usual cleanout rods may be inserted from the sump 271through thebranchA pipel 15 into the pipe 14.A

From the foregoing description itl will be ap-v parent that we have -provided'a novel sewer iiushing device which is simple in construction and highly efficient in use.v

Having thus described our invention, we claim: 1. In combination with a sewer ushing appavratus including a water reservoir and av pipe positioned below said `reservoir and communicating with a sewer, a branch pipe including an outlet f ratus including a waterreservoir and a pipe posi-` tioned below said reservoir and communicating r with a sewer, a branch pipe including a Vsingle outletat one end and a' pair of'inlets'at -f the oppositeend, said inlet and said outlets having 'their axes horizontally arranged, said branch pipe outlet communicating with said first pipe, one of said branch pipe inlets being in line withsaid outlet and the other being offset fromgsaid outlet and means to conduct water from said reservoir to said offset inlet of said branch pipe.r

, 3.V In combination'with a sewer flushing deviceV including a water`reservoirand afpipe positioned below said reservoirv and vvcommunickatingawith a sewer, a branch pipe including a single outlet at one end and a pair of inlets at the opposite end,

said inlets and said outlets having their yaxes horizontallyparranged, said branch'pipe outlet cornmunicating with said `iirst pipe, oneof said branch pipe inlets being in line with said vloutlet and the other beingoffset from said outlet,` means to conductwater from said reservoir to Asaid offset inlet of said branch pipe, a vent pipe, `said vent pipe communicating with said other branch pipe inlet and extending upward above the normal 'i water'rlevel in said reservoir. j

4. In a sewer flushing device, a water reservoir, t 1

a pipe positioned below said reservoir and comf municating with a sewer, means to conduct water from said reservoir to said pipe,v said means including a goose neck pipe member and a siphon head, said goose neck member including an outlet leg and an inlet( leg joined byra curved portion, said outlet leg .terminating in an angular outlet portion communicating with said rst pipe, the curved portion of said goose neck being positioned below the plane of said first pipe, said siphon head including an outlet leg, an' enlarged transverse chamberportion and an inlet leg, the lower portion of said siphon headr outletv communicating with saidgooseneck inlet leg and the upper end of said siphon head communicating with said chamber, the lower end of said siphon inletleg being spaced above the bottom of said reservoir reservoirwith'water, said chamber having an air inlet, a valve for controlling said inlet, said valve .including an operatingmember, a pivoted disc, a

float for swinging said'disasaid disc having portions thereon for engaging said operating member yto move the latter whereby when the water level in said reservoir rises abovea predetermined point the atmosphere.

5. In a sewer flushing devicea water reservoir,

a pipepositioned below the bottom of said reser-A and the' top of said siphonfhead inlet leg com- I municating with said chamber, means to fill 'said f 95..

the air in said siphonhead will be released to voir, a branchpipe'positioned below' the bottom of said reservoir, said pipe including a single outlet at one end-and a pair of inlets at the opposite end, a reduction bend pipe communicating at its*- large end withone of said branch pipe inlets, a vent pipe communicating with the Asmall end of said reduction vbend and `extending upward toa point above the normalwater level in said reservoir, a goose neck pipe member Aincluding an outlet leg andan inlet leg joined by a curved portion, said outlet leg terminating in an angular outlet vportion communicating with said other inlet of said branch pipe, the curved portion of said goose neck being positioned below said branch pipe, said;

inletleg of said goose neck extending upward into said reservoir, a siphon head including an outlet* leg, an enlarged chamber portion and a reduced inlet leg, Vthe lower portion of said outletleg of said siphon head communicating withvsaid inlet leg of said goose neck and the upper end of said siphon head outlet leg communicating with said chamber, the'lower end of said siphon head inlet leg being spaced above the bottom of said reservoir and the top of said siphon leg communicating withsaid chamber, a valve member communicating with Vthe interior of said chamber, a float for Vactuating said valve member, said valve when said float is in fa lowered position below a predetermined point being closed and when said iioat is in a raised position above a predetermined'point being in an opened position to allow free passageway of air from said chamber through said valve to the atmosphere. v'

HERMAN WIRZ, Jn.

CHARLES F. HLAVATY.. 

